Hello I know there are a ton of questions and answers to this topic but it’s sometimes seems confusing. So I’m coming from the saltwater hobby and still learning all of this. So my house is using a whole house water softner, and my understanding this is not good to use correct? So I’m using my RODI unit that I have, I’m adding GH to it to bring it up to close to the 120tds mark. However my PH is very low 6.1-6.2 I get this is normal for RODI, but when looking up if I should raise my PH some websites say yes and some say I shouldn’t do anything.
So when using my CO2 I’m reading my PH should drop 1.0 to get best results for the plants, well that would drop me all the way to like 5.2, that seems crazy low. I know the PH reading during the CO2 phase is somewhat false, but still very low. I’m reading this off of my Neptune Apex controller ph probe.
I have no fish at the moment, but a ton of plants, some higher end a lot of stem plants, kind of doing a Dutch style in a 40 gal tank. So is my ph ok like this should I raise it, I would like to get fish but worried I’ll just kill them with the low ph. The plants I have are brand new only a couple of days, just hoping they will be ok as well. I have very high lighting, and adding ferts as well. So any help or answers to this would really help, should I raise this PH level, and could I add fish with it like this? Thank you